News Release

NEWARK, Calif., April 30, 2015 (GLOBE NEWSWIRE) -- StemCells, Inc. (Nasdaq:STEM), a leading stem cell company developing and commercializing novel cell-based therapeutics and tools for use in stem cell-based research and drug discovery, announced today that it will release financial results for the first quarter 2015, after the market close on Tuesday, May 5. StemCells will host a conference call and webcast to discuss its results and an update on its business at 1:30 p.m. Pacific Daylight Time (4:30 p.m. Eastern Daylight Time) the same day.

Interested parties are invited to listen to the call over the Internet by accessing the Investors section of the Company's website at www.stemcellsinc.com. Webcast participants should allot extra time before the webcast begins to register and, if necessary, download and install audio software.

An archived version of the webcast will be available for replay on the Company's website beginning approximately two hours following the conclusion of the live call and continuing for a period of 30 days.

About StemCells, Inc.

StemCells, Inc. is currently engaged in clinical development of its platform technology, HuCNS-SC® cells (purified human neural stem cells) as a potential treatment for disorders of the central nervous system (CNS). Interim data from the Company's Phase I/II clinical trial in thoracic spinal cord injury (SCI) show measurable gains involving multiple sensory modalities and segments, including the conversion of 2 of 7 patients enrolled in the study with complete injuries (AIS A) converting to incomplete injuries (AIS B), post-transplant. Enrollment has recently commenced in the Company's Phase II clinical trial in cervical SCI. StemCells, Inc. has also completed enrollment and treatment in its Phase I/II clinical trial in geographic atrophy of age-related macular degeneration (GA-AMD), the most severe form of dry AMD, which is the leading cause of blindness in the elderly. Based upon interim results for subjects with twelve months data, the Company reported a 70 percent reduction in the rate of disease progression as compared to the control (untreated) eye and a 65 percent reduction in the rate of disease progression as compared to the expected natural history of the disease. In a Phase I clinical trial in Pelizaeus-Merzbacher disease (PMD), a fatal myelination disorder in children, the Company showed preliminary evidence of progressive and durable donor-derived myelination in all four patients transplanted with HuCNS-SC cells. Further information about StemCells, Inc. is available at http://www.stemcellsinc.com.

Apart from statements of historical fact, the text of this press release constitutes forward-looking statements within the meaning of the U.S. securities laws, and is subject to the safe harbors created therein. These forward-looking statements speak only as of the date of this news release. The Company does not undertake to update any of these forward-looking statements to reflect events or circumstances that occur after the date hereof. Such statements reflect management's current views and are based on certain assumptions that may or may not ultimately prove valid. The Company's actual results may vary materially from those contemplated in such forward-looking statements due to risks and uncertainties to which the Company is subject, including those described under the heading "Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2014 and in its subsequent reports on Forms 10-Q and 8-K.